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IMPROVEMENT ON DESIGN AND CHARACTERISTICS OF LARGE SCREW REFRIGERANT COMPRESSORS.

Author(s) : BYKOV A. V., KANYSHEV G. A.

Summary

OIL CHARACTERISTICS HAVE A GREAT EFFECT ON THE VOLUMETRIC EFFICIENCY AND THE ENERGY EFFICIENCY OF SCREW COMPRESSORS. THE INCREASE IN OIL VISCOSITY AND THE DECREASE IN THE SOLUBILITY OF THE REFRIGERANT IN OIL INCREASE ENERGY EFFICIENCY AND DECREASE LOSSES ON THE EXCHANGE OF REFRIGERANT IN COMPRESSION. FRICTION LOSSES OF ROTORS AT THE OPTIMUM RPM ARE EQUAL TO 20% OF THE EFFECTIVE EFFICIENCY OF THE COMPRESSOR. THE DECREASE IN THESE LOSSES TO 5-10% CAN BE OBTAINED BY A SPECIAL TREATMENT OF ROTOR SURFACES. MECHANICAL LOSSES ARE REDUCED TO 5% BY THE USE OF ROLLING BEARINGS. THE DOUBLE THROTTLING CYCLE OF THE REFRIGERANT RAISES THE EFFICIENCY OF SCREW COMPRESSORS. THE PROBLEM OF THE APPLICATION OF THE SMALL OIL SEPARATOR TO THE ROTATING COMPONENTS OF AMMONIA COMPRESSORS IS BEING STUDIED.

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Details

  • Original title: IMPROVEMENT ON DESIGN AND CHARACTERISTICS OF LARGE SCREW REFRIGERANT COMPRESSORS.
  • Record ID : 1986-0564
  • Languages: English
  • Source: [Refrigeration serving humanity]. Proceedings of the XVIth international Congress of Refrigeration.
  • Publication date: 1983/08/07
  • Document available for consultation in the library of the IIR headquarters only.

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